A sudden loud sound such as an explosion is most likely to impair hearing by damaging which of the following?
a. hair cells in the organ of Corti
b. the vestibular nerve
c. the utricle and saccule
d. the otoliths
e. the endolymph
a
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The reduction of atmospheric nitrogen to ammonia is called ________.
A. nitrification B. denitrification C. nitrogen fixation D. ammonification
________ inhibitors bind reversibly at the active site of an enzyme
Fill in the blank with correct word.
In the accompanying figure, the chance that individual III-2 is a heterozygous carrier is __________
A) 0% B) 25% C) 50% D) 75% E) 100%
While working with a broth culture of archaea in the laboratory, you accidentally spill some of the microorganisms on yourself. Do you need to be concerned about developing an infection? Why or why not?
a. No; archaea are not pathogenic. b. Yes; certain archaea can be pathogenic, so an infection could occur. c. Yes; all infectious prokaryotes are archaea. d. No; archaea are prokaryotic, so they cannot cause infection.